As tensions between the world of magic and Academy City continues to rise, Touma Kamijou and his hand of negation must face off against both esper and magician in order to protect the lives of those around him. Of course, he is not alone in his fight; whether by his side or out of sight, allies and enemies both old and new will enter the fray to help him. Toaru Majutsu no Index II continues the story of action and comedy, as the scale of Touma and his allies' battle grows ever larger. A conflict is slowly brewing on the horizon, and magic and science will cross paths once again in the war to come.

In the year 2205, a special sage known as Saniwa has the ability to breathe life into inanimate objects. At the same time, dark forces have initiated a plot to travel back in time and change the course of history—and the only ones capable of stopping them are the Saniwa and their strongest animations: historical Japanese swords, in the form of handsome young men. Touken Ranbu: Hanamaru opens on the life of Yamatonokami Yasusada, Souji Okita's beloved uchigatana, as he begins his first day at the Saniwa's citadel. Soon reuniting with his old friend, Kashuu Kiyomitsu, the two are caught up in the daily antics of their fellow sword warriors. They never miss an opportunity to have fun, whether it be through wild snowball fights or introducing their newest comrades to the citadel. Of course, when the government calls, the swords are always ready to fulfill their mission of protecting history.

Energetic and cheerful, 14-year-old Masaki Hinaoka takes his pet corgi on morning runs along the beach bathed in the rising sun. Suddenly, Masaki's eyes sparkle in awe: a blond boy surfs, delicate and breathtaking, with a slight smile gracing his kind face. Before long, Masaki encounters him again as a new classmate named Shou Akitsuki. Shou is a skilled surfer and has been immersed in the sport since childhood. Even though surfing is the hobby of choice for Masaki's best friend, easygoing half-Hawaiian Nalu Tanaka, Masaki has never shown interest in trying it himself. But his admiration for Shou's surfing style finally inspires him to try the waves for the first time—despite not knowing how to swim. On the surfboard, Masaki shows surprising potential and talent for balance. He learns quickly and eventually enters a local competition, all with Shou and Tanaka by his side. However, behind Shou's gentle smile lurks a darker shadow, threatening to overwhelm his friends. Nonetheless, Masaki fearlessly steps into the fun world of surfing, stopping at nothing to be the very best.

Resolved to become a more independent person, Yukino Yukinoshita decides to smoothen things out with her parents, and the first step toward achieving that goal is to prove herself. As graduation draws closer for the third-year students, Iroha Isshiki—the president of the student council—requests a graduation prom in collaboration with the Volunteer Service Club. Yukino accepts this request of her own volition, hoping to use it as a chance to demonstrate her self-reliance, but what lies ahead of her may prove to be a hard hurdle to cross. Yahari Ore no Seishun Love Comedy wa Machigatteiru. Kan revolves around the graduation prom as emotions are poured into the preparations for the event. At the same time, a chance for the Volunteer Service Club members to better understand each other presents itself. And thus, Hachiman Hikigaya's hectic and bittersweet high school life begins to draw to a close.